- ISO 141/014. Features: - Item No.: SR-12. - Grit: Blue/Medium. - FG 1.6mm for high speed handpiece. - Only for dental use. - Natural emery powder, with high hardness, can ensure the drill sharpness. - High quality stainless steel stem, high strength, no rusty. - Can be disinfected under high temperature and high pressure. - MAX. speed 300,000 rpm. **For further product information, please contact Chat Support**